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Does your hair have a negative or positive charge?
Niether. Our hair are electrically neutral as they are insulators. However by friction, it is possible to charge them either positive or negative.
Is dexamethasone a positive or negative ion?
Dexamethasone is a synthetic glucocorticoid medication that is usually found as a salt, such as dexamethasone sodium phosphate. In this form, dexamethasone is typically a negative ion due to the presence of the phosphate group.
Is ethanol positive or negative polarity?
Ethanol is a polar molecule due to the presence of the hydroxyl (-OH) group, which leads to uneven distribution of charge within the molecule. This gives ethanol a positive and negative end, making it a polar solvent.
What is the charge of an ionic conpund?
An ionic compound is typically formed when a positively charged metal ion and a negatively charged non-metal ion come together through electrostatic attraction. The overall charge of an ionic compound is neutral, as the positive and negative charges balance each other out.
What does the presence of the Rh antigen mean?
Rh antigen, which is also called D antigen, indicates if the blood type is positive or negative. The presence of this antigen indicates the patient is Rh positive, the absence of this antigen reflects a blood type of Rh Negative. For example, if a person is O Positive, the Rh antigen is present.
Does your hair have a negative or positive charge?
Niether. Our hair are electrically neutral as they are insulators. However by friction, it is possible to charge them either positive or negative.
Which one is positive and negative?
Positive is above zero and negative is below zero.positive: +8 or 8negative: - 8if it has a (line) minus sign in front of it, its negative...If it has nothing or a (cross) adding sign then its Positive!
Is dexamethasone a positive or negative ion?
Dexamethasone is a synthetic glucocorticoid medication that is usually found as a salt, such as dexamethasone sodium phosphate. In this form, dexamethasone is typically a negative ion due to the presence of the phosphate group.
Can your blood type change from positive to negative?
No, your blood type cannot change from positive to negative. Blood type is determined by the presence or absence of certain antigens on red blood cells, not by the positive or negative Rh factor.
How can doctors determine positive or negative blood types.?
Doctors determine positive or negative blood types by testing for the presence or absence of a specific protein called the Rh factor on the surface of red blood cells. A positive blood type indicates the presence of this protein, while a negative blood type indicates its absence. This information is important for blood transfusions and pregnancy monitoring.
Is the nucleus charge positive or negative?
The nucleus has a positive charge due to the presence of protons, which are positively charged particles. This positive charge in the nucleus is balanced by the negative charge of electrons surrounding it in an atom.
Where does the positive and negative for blood come from?
The positive and negative blood types come from the presence or absence of certain antigens on the surface of red blood cells. Blood type A has A antigens, B has B antigens, AB has both A and B antigens, and O has neither A nor B antigens. The positive or negative designation refers to the presence or absence of the Rh factor antigen.
How can a gram negative HVS test has a a gram-positive cocci?
A Gram-negative HVS (high vaginal swab) test may show Gram-positive cocci due to contamination or the presence of mixed flora in the vaginal area. While the primary target of the test is typically Gram-negative bacteria, the normal vaginal microbiota can include Gram-positive cocci such as Streptococcus or Staphylococcus species. Additionally, the Gram staining process may reveal various bacterial types in different proportions, leading to the presence of Gram-positive cocci alongside Gram-negative organisms.
Is ethanol positive or negative polarity?
Ethanol is a polar molecule due to the presence of the hydroxyl (-OH) group, which leads to uneven distribution of charge within the molecule. This gives ethanol a positive and negative end, making it a polar solvent.
What IMVic results would indicate the presence of fecal coliforms?
The IMViC test results that would indicate the presence of fecal coliforms are negative for indole production, positive for methyl red test, negative for Voges-Proskauer test, and positive for citrate utilization.
What are the properties of an atom that determine its interaction with other atoms based on the presence of positive and negative charges?
The properties of an atom that determine its interaction with other atoms based on the presence of positive and negative charges are its atomic number, electron configuration, and the distribution of positive and negative charges within the atom. These factors influence how atoms bond with each other to form molecules.
What are the key differences between gram-negative and gram-positive bacteria?
Gram-negative bacteria have a thin peptidoglycan layer in their cell wall and an outer membrane, while gram-positive bacteria have a thick peptidoglycan layer but lack an outer membrane. Gram-negative bacteria also have lipopolysaccharides in their outer membrane, which gram-positive bacteria do not have. Additionally, gram-negative bacteria are typically more resistant to antibiotics due to the presence of the outer membrane.
